Baaaq Mini USB 3 Speeds Rechargeable Portable Table Fan with Emergency Power Bank, Blac Strong aluminum exterior provides both security and durability The included high capacity 18650 lithium-ion battery provides long runtime and easy recharging Powerful ultra-bright XM-L T6 Cree LED chip provides a high light output compared to others Adjustable focus zoom lens allows you to easily switch from a narrow beam to widespread coverage Easily recharge the light whenever the power is low thanks to the included 18650 battery charger